CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Citigroup’s net income		$ 3,230	$ 4,913	$ 7,068	$ 14,422
Add: Citigroup’s other comprehensive income
Net change in unrealized gains and losses on debt securities, net of taxes	[1]	(282)	307	3,683	2,145
Net change in debt valuation adjustment (DVA), net of taxes	[1],[2]	(307)	210	601	(358)
Net change in cash flow hedges, net of taxes	[1]	(235)	253	1,736	1,056
Benefit plans liability adjustment, net of taxes	[1]	246	(250)	(117)	(567)
Net change in foreign currency translation adjustment, net of taxes and hedges	[1]	897	(1,442)	(2,651)	(1,293)
Net change in excluded component of fair value hedges, net of taxes	[1]	(39)	(10)	1	52
Citigroup’s total other comprehensive income	[1]	280	(932)	3,253	1,035
Citigroup’s total comprehensive income		3,510	3,981	10,321	15,457
Add: Other comprehensive income (loss) attributable to noncontrolling interests		19	(33)	7	(26)
Add: Net income attributable to noncontrolling interests		24	15	18	50
Total comprehensive income		$ 3,553	$ 3,963	$ 10,346	$ 15,481

[1] See Note 17 to the Consolidated Financial Statements.

[2] See Note 20 to the Consolidated Financial Statements.